Volcano earthquake report for Thursday, 1 October 2026
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 1 Oct 2026 Number in brackets indicate nr of quakes.

Quakes detected near: Agua (2 quakes between mag 1.1-2.5), Akyarlar (5 quakes between mag 1.0-1.9), Balut (3 quakes between mag 2.1-2.8), Bardarbunga (2 quakes between mag 0.6-1.8), Clear Lake (25 quakes between mag 0.2-1.9), Etna (1 quake mag 1.3)
Fisher (1 quake mag 1.4), Flores (22 quakes between mag 0.9-4.0), Grímsnes (1 quake mag 1.0), Hrómundartindur (13 quakes between mag 0.0-1.7), Hulubelu (2 quakes between mag 2.5-2.6), Kanlaon (4 quakes between mag 1.7-3.0), Kilauea (50 quakes between mag 0.8-3.4), Kolbeinsey Ridge (8 quakes between mag 2.2-3.3), Krísuvík (3 quakes between mag 0.7-1.9), Maunaloa (1 quake mag 1.6), Nemrut Dagi (1 quake mag 1.8), Numazawa (1 quake mag 2.9), Pelée (2 quakes between mag 0.2-1.3), Salton Buttes (1 quake mag 1.6), Theistareykjarbunga (1 quake mag 1.7) (updated 13h50)\n\nNote: Earthquakes within 20 km from and at depths less than 50 km under active volcanoes are reported. The list is not complete because many volcanoes are not monitored and/or seismic data in high resolution is not available publicly.\n
Volcanoes with recent earthquakes above magnitude 2 or more than 10 quakes are listed below:



Agua volcano (Guatemala): 2 earthquakes up to magnitude 2.5

2 earthquakes occurred near (under) the volcano during 6 hours, the last being recorded quake 13 hours ago. Hypocenter depths ranged between 3.90 and 2.00 km.
Earthquake details:
2.5 quake Guatemala Sep 30, 2026 01:04 pm (GMT -6) (5 km ESE)
1.1 quake Guatemala Sep 30, 2026 06:49 pm (GMT -6) (6 km E)
All earthquakes at Agua
Agua is a prominent 3,760 m stratovolcano beside Antigua, Guatemala. It has no recorded eruptions, while a devastating mudflow destroyed Ciudad Vieja in 1541.

Balut volcano (Mindanao): 3 earthquakes up to magnitude 2.8

3 earthquakes occurred near (under) the volcano during 7 hours, the last being recorded quake 13 hours ago. Hypocenter depths ranged between 33.00 and 2.00 km.
Earthquake details:
2.8 quake 014 km S 71° W of Balut Island (Municipality of Sarangani) (Davao Occidental) Oct 1, 2026 08:42 am (GMT +8) (9 km WSW)
2.7 quake 022 km S 44° W of Balut Island (Municipality of Sarangani) (Davao Occidental) Oct 1, 2026 02:22 am (GMT +8) (18 km SW)
2.1 quake 007 km S 75° W of Balut Island (Municipality of Sarangani) (Davao Occidental) Oct 1, 2026 09:06 am (GMT +8) (2 km W)
All earthquakes at Balut
Balut is an 840 m island stratovolcano south of Mindanao whose last known eruption occurred between about 2 million and 11,700 years ago. Hot springs and thermally altered ground occur on its western and southwestern flanks.

Clear Lake volcano (California): 25 earthquakes up to magnitude 1.9

Possible earthquake swarm: 25 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 4 hours ago. Hypocenter depths ranged between 3.55 and 0.68 km.
Earthquake details: (only 5 largest)
1.9 quake 8 km W of Cobb, CA, Oct 1, 2026 12:09 am (GMT -7) (16 km SSW)
1.5 quake 8 km W of Cobb, CA, Oct 1, 2026 12:10 am (GMT -7) (16 km SSW)
1.3 quake 7 km NW of the Geysers, CA, Sep 30, 2026 03:19 pm (GMT -7) (18 km SSW)
1.3 quake 9 km NW of the Geysers, CA, Sep 30, 2026 09:52 am (GMT -7) (17 km SSW)
1.2 quake 10 km WNW of the Geysers, CA, Sep 30, 2026 09:47 pm (GMT -7) (17 km SSW)
All earthquakes at Clear Lake

Flores volcano (Guatemala): 22 earthquakes up to magnitude 4.0

Possible earthquake swarm: 22 earthquakes occurred near (under) the volcano during 14 hours, the last being recorded quake 10 hours ago. Hypocenter depths ranged between 8.00 and 0.90 km.
Earthquake details: (only 5 largest)
4.0 quake Guatemala Sep 30, 2026 08:24 am (GMT -6) (14 km NW)
3.0 quake Guatemala Sep 30, 2026 08:43 am (GMT -6) (14 km WNW)
2.9 quake Guatemala Sep 30, 2026 08:31 am (GMT -6) (13 km WNW)
2.7 quake Guatemala Sep 30, 2026 08:29 am (GMT -6) (14 km WNW)
2.3 quake Guatemala Sep 30, 2026 04:11 pm (GMT -6) (14 km WNW)
All earthquakes at Flores
Flores, also known as Volcán Amayo, is a volcanic field about 10 km west of Jutiapa in southeastern Guatemala. Its last eruption is undated, and none are known from approximately the past 11,700 years.

Hrómundartindur volcano (Iceland): 13 earthquakes up to magnitude 1.7

Possible earthquake swarm: 13 earthquakes occurred near (under) the volcano during 20 hours, the last being recorded quake 58 minutes ago. Hypocenter depths ranged between 27.70 and 0.00 km.
Earthquake details: (only 5 largest)
1.7 quake Iceland: 3.6 km SSW of Þrengsli Oct 1, 2026 05:09 am (Reykjavik time) (14 km SSW)
1.4 quake 1.2 km NW of Skálafell Oct 1, 2026 05:08 am (Universal Time) (9 km S)
1.2 quake 0.9 km NNW of Skálafell Oct 1, 2026 05:09 am (Universal Time) (9 km S)
1.0 quake 0.4 km WNW of Raufarhólshellir Sep 30, 2026 11:14 pm (Universal Time) (16 km SSW)
1.0 quake 2.9 km E of Hveradalir Sep 30, 2026 08:51 pm (Universal Time) (7 km S)
All earthquakes at Hrómundartindur
Hrómundartindur is a small volcanic system in southwestern Iceland with an active geothermal area at Ölkeduháls. Its last eruption is uncertain, but activity is thought to have occurred about 10,000 years ago.

Hulubelu volcano (Sumatra): 2 earthquakes up to magnitude 2.6

2 earthquakes occurred near (under) the volcano during 44 minutes, the last being recorded quake 17 hours ago. Hypocenter depths ranged between 10.00 and 10.00 km.
Earthquake details:
2.6 quake Southern Sumatra, Indonesia, Oct 1, 2026 03:50 am (GMT +7) (4 km SE)
2.5 quake Southern Sumatra, Indonesia, Oct 1, 2026 03:06 am (GMT +7) (3 km SE)
All earthquakes at Hulubelu
Hulubelu is a 4-km-long volcanic depression in southeastern Sumatra. Its last eruption is not precisely dated, and none is known from approximately the past 11,700 years.

Kanlaon volcano (Central Philippines): 4 earthquakes up to magnitude 3.0

4 earthquakes occurred near (under) the volcano during 1 hour 56 minutes, the last being recorded quake 40 minutes ago. Hypocenter depths ranged between 7.00 and 1.00 km.
Earthquake details:
3.0 quake Negros- Cebu Reg, Philippines, Oct 1, 2026 09:09 pm (GMT +8) (14 km W)
2.6 quake 015 km N 57° W of City of Canlaon (Negros Oriental) Oct 1, 2026 07:14 pm (GMT +8) (7 km NNW)
2.1 quake Philippines: 016 km N 25° E of La Castellana (Negros Occidental) Oct 1, 2026 07:44 pm (GMT +8) (7 km NW)
1.7 quake 015 km N 57° W of City of Canlaon (Negros Oriental) Oct 1, 2026 07:53 pm (GMT +8) (7 km NNW)
All earthquakes at Kanlaon
Kanlaon is a 2,422-m-high stratovolcano and the highest point on the Philippine island of Negros. Its frequently explosive historical activity includes a deadly 1996 eruption and stronger eruptions during 2024-26.

Kilauea volcano (Hawai'i (Big Island)): 50 earthquakes up to magnitude 3.4

Possible earthquake swarm: 50 earthquakes occurred near (under) the volcano during 21 hours, the last being recorded quake 1 hour 43 minutes ago. Hypocenter depths ranged between 30.50 and 0.03 km.
Earthquake details: (only 5 largest)
3.4 quake 5 km WSW of Volcano, Hawaii, Sep 30, 2026 09:52 pm (GMT -10) (2 km ESE)
2.6 quake 4 km SW of Volcano, Hawaii, Sep 30, 2026 11:55 pm (GMT -10) (2 km E)
2.6 quake 5 km SW of Volcano, Hawaii, Sep 30, 2026 09:32 pm (GMT -10) (2 km SE)
2.6 quake 5 km SW of Volcano, Hawaii, Sep 30, 2026 08:47 pm (GMT -10) (1 km SE)
2.6 quake 13 km NE of Pāhala, Hawaii, Sep 30, 2026 05:02 am (GMT -10) (19 km SW)
All earthquakes at Kilauea

Kolbeinsey Ridge volcano (Iceland): 8 earthquakes up to magnitude 3.3

8 earthquakes occurred near (under) the volcano during 17 hours, the last being recorded quake 6 hours ago. Hypocenter depths ranged between 10.00 and 0.20 km.
Earthquake details: (only 5 largest)
3.3 quake Iceland Region Oct 1, 2026 06:49 am (Universal Time) (8 km W)
3.3 quake Iceland Region Oct 1, 2026 12:37 am (Universal Time) (9 km WNW)
2.6 quake 36.1 km NW of Grímsey Oct 1, 2026 01:27 am (Universal Time) (10 km NW)
2.5 quake 35.2 km WNW of Grímsey Oct 1, 2026 07:49 am (Universal Time) (10 km WNW)
2.5 quake 35.6 km WNW of Grímsey Oct 1, 2026 06:37 am (Universal Time) (10 km WNW)
All earthquakes at Kolbeinsey Ridge
Kolbeinsey Ridge is a submarine fissure-vent system north of Iceland, with tiny Kolbeinsey Island as its only expression above sea level. Historical eruption reports from 1372 and 1755 have uncertain locations.

Numazawa volcano (Honshu): magnitude 2.9 earthquake

A magnitude 2.9 earthquake occurred at the volcano 22 hours ago. The quake, which might be volcanic in origin, was located at a depth of 5.70 km depth at 13 km distance WSW from the volcano.
Earthquake details:
2.9 quake Japan: Western Fukushima Pref Oct 1, 2026 12:58 am (GMT +9) (13 km WSW)
All earthquakes at Numazawa
Numazawa is a Japanese shield volcano with a 1.5 × 2 km lake-filled caldera. Its only listed confirmed eruptive period was a major explosive and effusive event several thousand years ago.
https://www.volcanodiscovery.com/earthquakes-volcanoes/news/368685/Volcano-earthquake-report-2026-10-01.html